2011 Tug Towing Vessel Density

Automatic Identification Systems (AIS) are a navigation safety device that transmits and monitors the location and characteristics of many vessels in U.S. and international waters in real-time. This dataset represents the density of tug and towing vessel traffic in 2011 for the contiguous United States offshore waters from tug or towing vessels with AIS transponders in 100 meter grid cells. The dataset is best interpreted using a high to low density scale and does not represent actual vessel counts.

Data and Resources

Additional Info

Field Value
Last Updated July 23, 2019, 20:47
Created March 5, 2018, 18:43
access_constraints ["Access Constraints: None | Use Constraints: These data are intended for coastal and ocean use planning. Not for navigation. https://marinecadastre.gov/about/disclaimer.html | Distribution Liability: NOAA makes no warranties or representations whatsoever regarding the availability, quality, accuracy, content, completeness or suitability for the user's needs of such information. The services, information, and data made available on the MarineCadastre.gov web site are provided 'as is' without warranties of any kind. These data are intended for coastal and ocean use planning. Not for navigation."]
bbox-east-long -83.999996233
bbox-north-lat 31.982964192
bbox-south-lat 16.453447851
bbox-west-long -97.919325572
contact-email coastal.info@noaa.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2015-05-29"}]
frequency-of-update notPlanned
guid gov.noaa.nmfs.inport:48927
licence ["NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose."]
metadata-date 2019-07-02T15:17:35
metadata-language eng
progress completed
resource-type dataset
responsible-party [{"name": "NOAA Office for Coastal Management", "roles": ["pointOfContact", "custodian"]}]
spatial {"type": "Polygon", "coordinates": [[[-97.919325572, 16.453447851], [-83.999996233, 16.453447851], [-83.999996233, 31.982964192], [-97.919325572, 31.982964192], [-97.919325572, 16.453447851]]]}
spatial-data-service-type
spatial-reference-system
spatial_harvester true
temporal-extent-begin 2011-01-01
temporal-extent-end 2011-12-31